Delaware County, Iowa Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Manchester15,2945,0741.05%1,0934.8City
Earlville27177170%1,3010.6City
Hopkinton36246220%9720.6City
Delhi44384141.39%4620.9City
Colesburg5382386-0.26%1,2990.3City
Ryan6345347-0.29%7880.4City
Greeley72162160%5760.4City
Dundee81941940%6160.3City
Delaware9138140-0.72%1890.7City
Masonville1099990%3030.3City

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Delaware County, Iowa?

Manchester is the largest city in Delaware County.

What is the smallest city in Delaware County, Iowa?

Masonville is the smallest city in Delaware County.

How many cities are in Delaware County?

There are 10 cities in Delaware County, Iowa.

Frequently Asked Questions